| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1977 |
|
The Best of Robert Heinlein 1939-1942 | Sphere | Collection | 12 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1977 |
|
The Best of Robert Heinlein 1939-1942 | Sphere | Collection | 12 |